ZF 4108.303.066 FAN WHEEL | OEM Genuine Part

Overview

The ZF 4108.303.066 FAN WHEEL is a critical cooling component within ZF construction machinery transmissions, specifically engineered to regulate oil temperature by driving airflow through the transmission cooler. Positioned on the input shaft assembly, this OEM genuine fan wheel ensures consistent thermal management during high-load operations. The SKU 4108.303.066 identifies a precision-balanced unit designed to reduce vibration and extend the service life of adjacent drivetrain components. When paired with the 4108101031: HOUSING and 4108303155: HOUSING, this fan wheel maintains proper clearance and airflow dynamics within the gearbox cavity.

Symptoms of Failure

• Transmission overheating under load: A worn or cracked fan wheel reduces airflow, causing oil temperatures to spike during extended operation. This often triggers warning lights or thermal shutdowns.
• Unusual rattling or scraping noises: Loose blades or hub wear produce metallic sounds from the front of the transmission, especially at idle or low RPM.
• Oil leaks near the input shaft: A deformed fan wheel can contact the 0636302015: SCREW PLUG or housing seal, leading to fluid seepage around the front cover.
• Reduced cooling efficiency and erratic shifting: Inadequate airflow causes the transmission control module to limit torque converter lockup, resulting in delayed or harsh gear changes.

Technical Specifications

Compatibility

This fan wheel is primarily used in ZF WG180, WG200, and WG210 series powershift transmissions found in wheel loaders, bulldozers, and graders. It also fits select models of the ZF 4WG-200 and 6WG-200 torque converter transmissions. Always verify fitment with your transmission serial number, as the 0630361037: SEALING CAP and hub dimensions may vary between production batches. For intermediate gearbox applications, the 4108108019: INTERM.GEARBOX uses a similar fan wheel design.

Related Components